DE1437668A1 - X-ray and ultraviolet radiation detectors for multicolor cathode ray tubes of the beam index type - Google Patents

Description

X-ray and ultraviolet radiation detectors

for melir-colored cathode ray tubes of the 3-beam index type »

The invention relates to cathode ray tubes with screens, which X-rays produce when exposed to cathode rays, and the means of perception of the Eontger rays produced in this way. In particular it relates to the perception of index signs in beam index type large cathode ray tubes.

In the Uö patent 3 «810.414 · or the German

Patent specification (German patent application G- 36 57S

VIIIa / 21al) describes a cathode ray tube which without a heated cathode works “instead, X-rays are used that are sent out when the screen of the. Stir acted upon by electrons with high energy will. These x-rays are sensed by scintillators to create light signals that pass through light tubes until they hit photosensitive surfaces which in turn emit electrons.

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These electrons are then multiplied, controlled. ,,: ■ ·; and focused to a cathode ray. This ray _: .,. _: scans the screen, creating additional x-rays and keeping the circuit working. In such an arrangement the scanning beam amplifies to a size at which a saturation level is reached. The

Providing excitement at a level point on the screen is this saturation level and the nature of arousal proportional. It is then possible to adjust the output power to modulate this non-heating tube in that the Saturations! ve- ?, u or the duration of the excitation is changed. This arrangement ran: rt a cathode ray tube with a closed-loop feedback system and generates an electron beam without the conventional arrangement of cathode and heater.

An essential purpose of the present invention is, in the arrangement described above, the effectiveness to increase the perception of the X-rays. The invention also aims to create a particularly sensitive X-ray detector device, which can be sent with all types of cathode ray tubes, heaterless or with heating, provided they work with X-ray indexing.

It is a further object of the invention to provide sensing means which are responsive to penetrating wire and which can be used to increase the "sensitivity" of a beam index circuit for color cathode ray tubes. _. : rw Ο> 1 ^^ ^ΜΚ ^

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Further advantages and guidelines of the Lr find us result from the following description in connection with the attached drawings. It lines:

1 shows a cathode ray tube with an ocintillator, which is attached to the electron gun of the tube,
3? Ig. .2 e :: ne cathode ray tube with a scintillator, which has a large recording area, a Ka ^ po # ßnst; rahlröhre with external X-ray image detectors,

"4- a cathode ray tube with a strip-like shapediife ^ scintillator, on the outer surface the tube shell is arranged, a cathode ray tube '<rj.t three separate Scintillators on the inner surface of the tube shell .'- ngeord: ', ■ /; 3 / _α1,

713 ;. 6 a cross-section through the holirs of Fig. 5> Fig. 7 a heater.; _ !. ■ <> M--ivliod3nscri.ulroa.ee _} ^ i '>' - · ■. · ■: "/ ^ r »A single jcintillator around the auricular ulcer

is lying around
Fig. 8 shows a heating-less cathode ray tube,

. in which /, v / ei .icintillaLoren in similar Arrangement as in Fig. 7, but on the inner surface

9 shows a screen with three areas which produce different colors and to which three different index signals, 3ir.es for o ^e <len color-producing area, are assigned,

Fig. 10a two different excitations: snive; -U3 for the red stripes of the screen of Fig. 9 »

Fig. ICb two veiibchiederie Lr :. l, ju. _u ;: | 'Cj.'mci: so. red stripe of the screen 3 screen of Fig. 9 ?.

Fig. 11 a composite Bj jc £ cl.j ii. ·. for use with a cathode ray tube for generating index signals,

Fig. 11a is an end view of the screen of Figs. 11 and a

F sharp. 12 different end shapes in and a 'transition' for the streak enarti "-en Scintilla gates.

Figures 1, 2 and. 3 represent the. 3t * m of 'technology, the s ^.; ch from the LB-Pa ^":?.! entscbrift ^3"; 1G.414 results to the figures, in each case a cathode ray tube with a • IC is -'- estel · It, ÖIE an i-.lektrcnenkanore 12 for

uJif- an alc tronenstrr-hles erthVlt. JDss Tiile ^ er-t 14, which appears in three figures, takes elelrtrnin ^ c-netisclji oti-hlunr: .. uf, ν "eiche: ·: ώ BiJdschirr. Der Hi ^: lire in dependency before the excitation is produced by the., -,!., ktrorenstr ^ hl. Ir. 3i *. 1 is Q-: s ^! iron 14 insofar with Lozuc

ui the screen advantageous? n eoror t, dj it in? /ecentl.lchen same Str'fclurp'smor.'jen of -.Ilen '! rush of the screen ■! ufr.i-.urut. . Provided in Figure 2 is ~ d's Jlecent 14 nit eirtr gros rope Cbirfli-'c '^ c ·' un the Jtr: ^j hlvr "· ufzur - ', .- sn, ¹ century has in seinera body of a J.. -.exal ^: uf, so 6. ß der ^ lok-roiuriSti-chl -us 'er _ ^.; no: .e 12. zum 1 ;.' Ijirru out "c ^v - l-.ufen! - nn. Ii Fi .. 5 lsi; σ. · ε Lle - '^ rt 14 -'ussir :; Ib -.sr

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Tube and in the kkhe the plane of the "front of the Cathode ray tube arranged.

The JPig. 1-4 show cathode tube tubes that are used for color television receivers can be used.

In ITig. 4, the cathode ray tube has an envelope 20 and a screen 22 which is either in the front inner surface of the envelope 20 or in the direction of the latter. Electromagnetic radiation occurs on paths 36, '. 34,32 and 30; ius the screen nus. In one embodiment of this invention, the screen 22 is constructed so that its radiation is in the X-ray region of the spectrum. A deintillstor 26 is assigned to the rod 24 and is aurc '; such X-rays are excited, which pass through the V; EC 36, generates continuous en whereby flashes of light. These flashes of light are conducted through the rod 24 with a series of internal reflections to an exit end. .ius the drawing shows that the ii-ufr. hmbereich f ^; . \ r the X-rays through the "/ ore er flat of the egg .otrnrce 24 associated with the sciatillator 2c <e ^". To enlarge the recording area and d it the .ii'vpfindi 'chkeit the external radiation exposure ^T ü "'". ss of the invention, a lUngiiches üc int illations member 28 against r-α :. ^x s, dus rn ^ US ^ enseite the sheath 20 is located at.''reader arrangement a borosilicate glass must for (! ■ i'j Hö schalle used and not a high anode voltage ..e r-bci.!. Et ir / er-Ien. Alternatively, kera- i:, j ■ ehe r ^ .- i; eri- 'i ^: cn, e.g. EeO, for the Trichberabsclinitt di ^ r Hi, ax ei hü; Ie ver ^ yen et - "woz'den. \ i; ^ ■; ■"; -

• - 6 809806/031 7

If necessary. 1, an opening with a thin beryllium window can be provided. With this arrangement, the X-rays emitted by the screen 22 strike the scintillator 28 along its length. The ways 34.32 and 30 are shown in Figure 4- at this point to explain and to enable a visual comparison with the effect which the X-rays produce over the, ieg 36 run. '. Indeed, the sensitivity will the inclusion now by the length of the element and controlled by volume, which results in a very significant advantage.

The otange 24 is preferably made of glass since it is rearranged in the high vacuum region of the cathode ray tube. Furthermore, the. Glasstane; e himself to be the de int i Ho tor, v / which results from the Tjo patent 3 * 320.659 of May 1, 1962 “.4ß-c On the other hand, the strip-like element 26? .Nn made a plastic scintillator be, de. es - ^r : n lies on the outer wall of the tube. There are plastic scintillators available commercially sensitive easy to edit or to form and to X-rays so that they respond quickly to RöntgeEStr & hlerregung, oie provide flashes of light, v, -ei before rapidly after cessation of JSR regunt verfi-Ile ^v ". An example of such a plastic scintillator is cer from Nuclear Enterprises, Ltd., .. 'Innipeg, Canada, under the designation j / .E-lC2 in den rianjel; ebr;: chte. For every type of öcir-tillator call the rent 'enstrhxe, -which are generated on the screen 22, the desired Jirgebh .; s by d ^ ss s: ". e iii d ^ s interior ^ jdes ... ^ cJ ^ Ci 11th gate

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penetrate where they generate light, whereupon through the curtain Due to the internal reflection, much of this light thus generated is transmitted through the scintillator to an output end will.

If the radiation to be perceived is in the optical frequency range, such as in the ultraviolet range, the same general conditions apply. For example, if a common P-16 phosphor (or calcium-magnesium-silicate-phosphor, Hiit Cer activated) is used for indexing, this generates ultraviolet radiation in the range of 5.8CO angstrom be ^; ir.-excitation by electrons. This 3.8CO angstrom radiation is surpassed through most of the Kf-thc-denstrahltöhrenc: l "ser when the carbon or aluminum cover is removed, and creates you ocintiilations in the art of f-phosphor-o tr- eif en 2t.

5 shows a cathode ray tube with three strip-like scintillators 42, 44 and 46 which are attached symmetrically to the inner oxne of the outer shell. Although not necessarily limited to this grounding, this arrangement is! ■ .esor-äers br - uch.t: r for apprentices -. Rber, -cathode tubes of the Strahl-Ir.dex type. The three Scirtillatoren i: oil: NEN responsive to the same excitation to the Z. In the pfindlichkeit ,. rr.bine to increase the · 5 »: gate 3. Instead l ·. ·. nn book, i & öer jcintill '"tor to accommodate eirer different jir: -Ιιΐυι:.; · ver. .ndet -'erden. In serving cases:. the .stripers 5 ^? 54 and 5S to the corresponding filter ^ nF · inherited fen ^"1 's three Stre". If d

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arranged outside the tube, the transmission property of the sheath 40 for purposes of fiIi; will. Further explanations do not appear required as the technique related -: Uf the filtering of x-rays and other rays is well developed.

In. It should be noted in FIG. 4 that an outbreak of radiation from the screen 22 reaches and acts on the scintillation element via various means. After the scintillation, the light pulses travel over different lengths in the light tube. Lsdux'ci: the result is that the light pulse generated in the scintillator 2Γ · ex ^{: sts during a pressing period of time as the radiation that is} reached. Fit f.-change c / orten leads a momentary emission of X-rays on screen 22 to a light pulse, the em üustrittsenfe of the element 28 from tr 1 t and ^T .7- ^; 'While there is a finite time, ils -uss means rc.e, d-ss of - "ustretende lic: ujrd tinrouls delayed This expansion, and deferrers ■■ erur-g of the pulse is ei ^v ..e Fi nction of the lungs of the üleme / .tes 2.t sov / ie des, ^^ erials, ⁿ us ö.e ™ it is made _o Lur wei -eren for ^ eternally j ± r> ending desireable change of the .aus.v -neslichtimpulses k-.nn ein lichtr hrele-i ^ nt 42 'verge .e> en se n, see Fi;. 5 · ' This additional delay can be used for the oyitcir-rcni ^ iorun ^ · the work cer FL .rbk -'- thcdenstrahlrotren used when radiation from the screen to deliver- 'very sc-'. r.eller Irdexsirx, -le verwencet v.ird. OC ltun; en rat high seas ch. '/ iröi reit unc ¹ . rro ri ^ -ler ver

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Delay is generally required for Citrahl-Index-Rchren, which are to be used for multi-color displays with high resolution.

As an example, let us assume that the index signal is used to establish synchronization of a three-color display using currently known vertical stripe images. For a 20 inch screen with 250 color triplet groups, there are 750 'stripes with a width of approximately 0.635 cm. The horizontal sampling time minus the return is 53.5 / usec. Then for a linear scanning beam with a spot size that is smaller than 0.635, the dwell time on each strip is approximately 0.07 / usec or 70! ■: »no seconds. V for a 0.127 mm beam and a 0.025 Indexdmht / ith a Rönt ^r \ enstr: before -ihlimpuls. approx. 17

a ^ oBO ^ L ¹ IjOen --ellefert, a rather hard index sign-.l. Dtr Rvinststoffscintillator 28 broadened this index signal by the expiration and the running time.

J.ne expiry time of 4 i: onoseconds is typical and rj jlbctversb'indl "eh. The transit time effect is explained by the ^ i! -) ■■ me, diss the / leglun-en 30 and 3 ^ are the same. i via the veg 3 ^ excites the scintillator, whereupon i / jr ILchtin pulse runs to the exit end near the shark - '.'bsclu'.i the 1st of the tube. The .otr-'hlun.'j · across the path 30 ei-i'-r.-: t also de: a Ocinbillaüor and zur? _Rle 'chen time; in (Ji-sein F-ili jedc.ch pjuss the light pulse over an additional. Itroc!: E $ 3 run in the scintillator , wes about 2 Eanoi-.e-ku / iden bo · a distance of 30 cm

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the resulting index signal from 17 to 23 canoseconds extended, which means that the index pulse is still very short is. To delay this pulse, the part 42 ' Provide a delay of about 10 eanoseconds over a distance of 1.50 ι, which is sufficient for fine control the total delay in the index loop. For comparison, it has the same length of a coaxial cable with a characteristic impedance of 5CO, which is often used in electrical delay chains, a delay of approximately 8 uanoseconds. Accordingly, elongated ocintillators can reduce the sensitivity of the . ■■ Significantly increase the perception of the index signal, and between with a profitable broadening of the region, whereby they deliver an "optical" signal which can be delayed in the transmission - llbar.

tr

Fig. 6 shows an Ai: sees one, section through the Rönre the Fia *. 5 for the clearer Dsrs-reilun; "of the ocintillators. The c: ’distillators 42, 44 and 46 are equipped with filters 52, 54 and 56 provided. These elements have a band shape and are ση the Arranged inside the tube shell. Arparts of the elements 42, 44 and 46 know a plastic scintillator 49 together with a filter element 47 or a plastic scintillator 51 with a metal jacket 53 used for filtering the outside of the tube to be arranged.

With a corresponding design, the shell 4C attenuates the X-rays only slightly, those ordered from & en -n- " dcintillators are perceived. In contrast

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in addition, most glasses absorb ultraviolet with a wavelength before ¹ less than 35CO Angstroms; if such signals or X-rays with low energy are to be recorded, the linear arrangement of the strips is to be preferred Requirements for the cathode ray tube firmly relent v / orden s-rd. This is because dozens of detectors and a wide variety of index phosphors are available. This results in an almost incalculable number of possibilities for the composition of glass and ceramics that can be used for cathode tube shells.

Fig. 7 shows a heating-less cathode ray tube with an internal tube. Otherwise: in the range 100, an expensive ion is ionized by irf'endeire natural urs? .ce. The ne ^ stive ion reb ~ ed as a result, ν corresponds to a pick, is accelerated by a high positive iSper-round. · Call up the point 102 on the Bj Id screen · By the ^ v.i'schl '^: S .nt; enstr ^; r.]. Tin are generated, which in all H "chtr_n: en abs.r .: .. 1 ^ n; typical Vepe are "104,106 and 106 d'-rgestelJt. Many of these Rcntirei rays produce in the Zle '.' Ient 110 scintillations, whereupon flashes of light result, which, as with IC? D: rg.":. 3tellt , in both Rieh un. ^ en l-'ufen. The I: .c: -: tr "r -:? en-

8 0 9 8 0 6/0317 BAD

. Properties of the scintillator make it possible for these flashes to be transmitted via the ./ege 112 and 114- in order, if necessary, to be transmitted to a suitable photosensitive ^; before surface 116 hit. The surface 116 emits electrons, which amplify the secondary emission at the dynodes 118 and 12C. The voltage connections of the dynodes and the screen are not shown. Lie electrons are focused on element 124, which “thereby delivers a stream of electrons which is intercepted by means which are symbolized by part 126. In fact, the last stages of the secondary emission amplifier and the element 1: 4 form an electron lens, so that the electron beam, which is usually generated in front of the heated cathode of a conventional electron gun, is supplied in this F-II by the Eleiaent IkM- . Additional details in the structure of the electron gun optics correspond to the usual and sir-d deshslb not d. .from this ^ north now "emerges the ..ilektronenstrehl 128, the accelerator.? t v7. to slam a call at 13 ^ on the screen. This procedure is repeated until stationary cracks are obtained. L -: - η lie ^; .t a constant current at 128. Leakages for the coding of this electrical current are explained below. Cf:? Ei ~ - "borrowed is" c the usual ethocenheizur- ~ r.-oh ier invention ssis - ~ ev; order.

In i? Ig. t is a v / eitei-e ^ ¹¹ Sf '■ " run: sicrz ο er he' Zunrrslo '-, en

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Cathode ray tube which divides. This tube creates 2 index sirmals and k; nn in a double index receiver be used. The tube actually delivers two electron beams that can be modulated. Purpose spiral scintillators 142 and 144 sir.d with each other intertwined and in the area of the funnel section of the Tube .assigned. By means of the dcintillation process these two detectors deliver two "optical" signals. those o.'ries through the light tube 146 and the other runs through the laugh tube 148 to point to two photosensitive Hit surfaces 150 and 152 shout. The dsdurch- generated ^ lel.tronen "'-earths through the grids 15 ^ - and 156 , -ventiiu ": rt urr t; .nsciiiie," ser, d reinforced and partially through the dyrodes 15 & and 160 focused. ..ie v / er.'en on it

cio; T durcli die t'bertr -.- irunrsdyrode 162 to form a. • ^! J- (j. ".": T.rortenr, trohies 164 focussed, deflecting coil 140 nö'-iich-t aie scanning activity of the beam 164. The .- ,. blenkfeider \ »/ earths of the dynodes 15c and löv unr. der i ⁱ Oicussierungsv ..: ri "^> ichtung 162 separated O'Ier b; _ .; e3cl.dr" it, in order not to disturb. Lie drawing "is ■■. ' c '', t • ncLßstabsr-erocht, but exaggerated, uia easier ■. ■ "ie vej-soiiiodenen - ^ le.icute to represent. The shielding iiiio i .'.-.-, f'iere barne of the oekrndf'rejüissionsvervielf acher s " ■■. ·: -η ί ic ^; bek-T.nt and d ^ hor nicht '.usführl.'ch d ^ r'-entell (- ■■: r - :. U_: rjcnt to understanding r -or i.rfi: .dun .'- contribute. -.a Ur; ι,.; & ü ' _y r; h zu bev chtt.:-, since ο s never hc e τ. rf indlichkeit ''ex-..F; ^i:.! til] ,; oren r -.- strength .J CHTS ^";; delivers na] e, through the α- i- ..J - ;; c. i'tt-.os > -ieki: "fjd:. '. reinir.ai'.; rLSvcj? stilrkers quickly to • /, VT ... '-. \ Δ .: VV - 1- ^ ebr-ci wjrc.,. _ - -

80 9 30 6/0 3 17 "'- 14 -

In this mode of operation it should also be noted that, if hard index signals are not required, the coils 14 and 144 may be of a certain length. The operation of the tube is then similar to that of the tube of FIG. 7 with the exception that two different radiations can be generated on the screen. In particular, there is a first area of the screen that generates X-rays in a given portion of the screen in order to excite the scintillator 142. There is also a second area which generates x-rays in a different part of the spectrum to excite the ocintillator 144. The radiation beam impinging on the screen in the first area generates x-rays which excite the ocintillator 142, causing the radiation wr> electrons are caused by the surface 150, etc.. The otstrahls "roir., which strikes the screen in the second area c, produces other X-rays, perhaps excite the scintillator 144, whereby the Abstr; -hiung before ¹ electron is caused by the surface 152, and so on. Then the beam is deflected from area to area on the screen. tv; ird, directs the source of the electron beam back and forth between the channels, which were formed by the dynodes 154 and 156, what makes it possible v /. rd, the beam currents separated into m> .duliorer. This version is advantageously used in self-decoding TV broadcasters. Since the uch ^r .ltuiven ^ n do not form part of the -.- jrfin, they are not given.

To explain the Lcdu.lp.ti: sewing method for the otstrahl

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9 shows a screen composed of phosphor strips which can emit red, green and blue light as a function of the electron excitation. Particles that generate X-rays can be mixed with the phosphors or deposited in layers on both sides. Instead, the chemical elements of the phosphors themselves can be used to generate X-rays. For the purpose of explanation, it is assumed that the red phosphorus of FIG. 9 with the associated X-ray generating particles forms the entire screen of FIG. In this case, electron beam 128 is set up to create a red spot of constant intensity on the face of the tube. This can best be explained with reference to the F: 'yuren 9 and IQa together. It should be noted that each strip of different color has its own fresned channel for the Scintiilatiorsw ^ rnehniunc and required for the controlled amplification of the electron beam. Accordingly, a two-color tube requires a Eurl-Iraexoyst: <i, as in Fi £. 8 d-: rn; it ^J ~ ellt. A system that works in this way for three colors requires a triple index setting. ö lan; ~ ed ^ s Abt '.- stfeld the jilektronenstr-.hl to the area 171 to the left of the ro ^: en, treifers der Fif- ·. 9 distracts, there is only a se ^ r scl: \ "- c: er ötr: -: - lilstrcm present, since no ^ single rjr.t-rerlstry ^ len i :: these ™. Eere.Vch generate- t be to the work of cichcltune: too

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However, as soon as the electron beam enters the right stripe, X-rays are generated and a color, namely red, is produced, and as shown in Fig. 10a, the beam current builds up. Curves 170 and 172 show two different ones Levels that the beam can reach. These levels can be controlled by regulating the space charge between the dynodes:. Typically, a cloud of electrons is allowed to build up in one of the dynode spaces. Then the cloud is released by lattice control, as in other types of electron discharge devices. Instead, gain control can be used in accordance with the teachings of US Pat by means of heater detectors instead of äekur> d & r-E ^T "issior'S dynodes that 7 ¹ Ie i before Haider ~ ebe reached." cnenströmhl «

In Fig. ICb a curve 174- is shown, ν calibrate a saturated beam current v /, which ITr a given time: snne a'-esch- ^ l ^ et. A second Eurve 176 is d'-r este2 "t, which is the pale, saturated level of a ray tr cms r: ie'ler" -t, which, however, has a greater time d-u-r =>. As that of the kuzve 174- h = t. ; ". 'ie in the .control of the .o' - 't ^ rl-ruijsrsDive ^ us according to iig. ICm, know the duration in 5 ¹ :'". ICb dc controlled by vercen that; ~ eei; n. ^! ; e, ver? nr er] i ehe potentials ^; η the jjyncden 118 and 120 of Fig. 7 -legt vreräe: · "..- At" itOichen

80 9 80 6/0 3 175 -'-. J _n - ^ TTT / - 17 -

Electron guns can be those shown in Figures 10a and b Results using an aperture and a deflector in the vicinity of element 124-der Fig. 7 can be achieved, further details result from U.S. Patent 3,380,101 dated June 5, 1962..

Referring to Figure 11, there is shown a composite screen which may be used in conjunction with a receiver system employing two different index signals. Figure 11a is an end view of the composite screen. The phosphor strips 180, 162, 184 ..... are arranged in such a way that they are scanned by an electron beam. An aluminum layer 185 is placed over the phosphor strips. The strips 186 and 188 lie on the aluminum layer in order to produce two different index symbols. For example, if the electron beam hits the strip 186, X-rays are generated which have a given length. When the beam hits the strip 188, x-rays that are different from those of the strip 186 are generated. The strip 186 k.> Nn is made of Eupferteliehen and the strip 188 is made of nickel. With this structure, the aluminum layer 1Γ5 mc .t only has the usual task of increasing the brilliance, but it serves ui Scatter 186 and 168 and the licbte.-to.'end otre ^ ' ^: .'en 18C, 182 and 184 · prevented. 'J'A ■ ο ζ one aluminum layer 190 is over the index layer, r <L;II'en created, ure of the eruption of an "ion spot" on the ii. Since this layer is not completely closed - the screen

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needs to cover it is as in the area. 192 ending. With certain types of distraction and certain Electron guns, this layer can be omitted. When using this layer, however, the negative ions are attracted to the screen. Their strength is chosen to be sufficiently large that they are suitable for ions opaque, but becomes transparent to electrons and x-rays. This arrangement reduces with respect on the index signals the "masking effect that would otherwise be caused by the impact of the negative ions on the x-ray emitting strips 186 and 188 could be generated. Another possible arrangement is illustrated by the X-ray emitting strips 194 and 198, which are encased or covered by layers 196 and 199.

In the! Ig. Ί2 show the elements 200, 204 and 206 end sections, which can be used for the ocintillation strips. The element 200 has a single layer 202beleges. "Snäe. This layer can e.g. be made of aluminum, be produced and is acted upon by light pulses that pass through the scintillator and are reflected to amplify the light coming from the other end of the ocintillator. If this shift is off an impermeable ... material, e.g. carbon, it absorbs the continuous from the output end Light pulses. This latter arrangement can be desirable when the broadening of the light pulses. should be kept to a minimum at the exit. That

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BAD ORiGiI

Element 204 has an end that widens towards the outside, that can be used at either end of a light tube, To facilitate the exit of the light to be transmitted. Se can be used for the coil shown in FIG where * both ends' serve as exit ports. The end of element 206 is compressed and can be used to direct the light .from this end reflect. Element 208 represents a transition that transfers light from a circular light tube to a streifenartitse light tube and vice versa transmits. These Ends can be used for the strips e'er Fig. 4, 1, 6 and 8 to achieve the desired properties.

The foregoing description shows how the essential objects of the invention are achieved. X-rays or other penetrating rays, such as ultraviolet rays, which are generated by a scanning beam in a cathode ray tube, are perceived by a special material, into which the radiation penetrates, is arranged next to the tube envelope and in the same extent to it and internal cintillations and which transmits the "light" produced by the scintillation through the process of internal reflections. It has been shown how through this ... ork ^ if.l the lightness of the radiation becomes much more annoying in relation to the end-to-end arrangement of the detector, which is known to the state of the art. The i.rfinaunr; sgei :: ate orderr. rn; supplies a str.rk improved Inuexsrgnal, v ^r s lch.es

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pronounced and hard and for oynchrorxisation

used to create an i.: enrfnrberid ^ rstellu.rifc \

80SS0 6 / n 3 1 7

Claims (1)

Claims. 1. Electron discharge facility, in the one behind the other an electron gun delivering an electron beam, an intermediate connection and a long electrode are arranged and are a light tube scintillation device has, which -ux '. ^ excitation signals, responds, the f.us the ring electrode - due to its excitation the electron beam emanate, thereby -rekennzeicLnet, d ^ ss the Lichtrchren-incintillation device itself next to an essential l'e: 'l of the intermediate section in a similar ■ expansion. 2. Si nr i clittuig räch jinsrr-uch 1, denoted by the fact that the oil device is arranged in the middle section directly at the bottom of the drive. 5. jixrric ""'t according to ^ nspruch 1 and 2, characterized by excitation signals in _J :: ont ..: ens "Gri; hl- or ultraviolet range dos elskbrorasgnetischeri Spe" trumso ^. ^L. ii, -.ν? c "huriR · rii-ch : - ^r -s ruch 1 to 3, thus ^ ekennzeich- J ^ net, d «.ss the oy / c? .See oijnale, d e through the dcinbilla _ο ti / nsvor rr · "i 'the iichtr / hre generate tv / earth, through co J./nere ran iex: i on-n in nine io.c.-itvng be transferred, : ■? € 'im we.sentl c.heri versc-ü "':.; Ien of that of the . ^: , ricn, uns · after ^ .: <^ ' r-uch 1 to 4, gel ^ ied by ■ iJG /ο/.-, c-ndiii · - ¹ ; a ue'.jz -hl von Lich1; r "snaffle: ⁵ ntilla- 6. Set up after. Claim 5 »characterized by that light-stirring scintillators an.:;e to separate Form Signa! 7. Device according to claim 1-6, characterized by means for generating a slectron cloud within the device from the optical signals transmitted through the light tube or light tubes. 8. Device according to claim 7> characterized by Means for focusing the electron population to one Electron beam. 9. Cathode ray tube, in particular ear television receiver tube using a facility according to one of claims 1 to 8. ■ 10. RöLre according to claim 9, characterized by that the optical .oienale for the spontaneous generation of electrical Index signals used v / earth. 11. Tube according to claim 9 - IC, geker.nzeich.net through an additional light tube used for delay. 809806/03 17